Understanding Trees and Their Impact

What is the primary source of a tree's physical mass?

• Soil nutrients

• Water from rain

• Sunlight

• Carbon dioxide from the air

How can planting trees help in addressing climate change?

• By providing more shade

• By absorbing excess carbon dioxide

• By increasing oxygen levels

• By reducing soil erosion

What was the previous estimate of the global tree population before 2015?

• 1 trillion

• 400 billion

• 600 billion

• 3 trillion

Which regions hold the majority of the world's trees?

• Desert regions

• Polar regions

• Tropical and subtropical regions

• Temperate regions

What is the current estimated number of trees on Earth?

• 3 trillion

• 4 trillion

• 2 trillion

• 1 trillion

What percentage of the Amazon has been lost in the past 50 years?

• 17%

• 10%

• 25%

• 50%

How does deforestation affect the water cycle?

• Increases groundwater levels

• Has no effect

• Decreases water vapor in the atmosphere

• Increases rainfall

What percentage of greenhouse gas emissions is attributed to deforestation?

• 15%

• 10%

• 20%

• 5%

What is one of the benefits of having more trees?

• Higher carbon levels in the air

• More places for hammocks and treehouses

• Less biodiversity

• Increased soil erosion

What is a significant consequence of fewer trees on the environment?

• Increased rainfall

• More carbon in the air

• Decreased temperatures

• More biodiversity